Hormonal
Time-restricted eating (TRE) improves metabolic health markers (insulin sensitivity, glucose control) independent of weight loss when the eating window is aligned with circadian rhythms (early/mid-TRE), whereas late or self-selected windows show little to no benefit.
If you want to try Time-Restricted Eating, start by shifting your eating window to the earlier part of the day (e.g., 8am to 4pm or 10am to 6pm) rather than skipping breakfast or eating late at night. Keep your food choices normal (ad libitum) but ensure you finish eating before 8pm. This alignment with your body's natural circadian rhythms is what drives metabolic improvements, independent of weight loss.
Many of the benefits of TRE on metabolic health are independent of weight loss, but instead are underpinned by the timing of meals in alignment with circadian rhythms... Indeed, the TRE literature to date suggests that later or self-selected TRE periods are less effective in improving markers of metabolic health.
Why this rating
Based on well-controlled human proof-of-concept studies (Sutton et al.) and animal models, though free-living data is inconsistent.
Source
Perspective: Time-Restricted Eating—Integrating the What with the When
Evelyn B. Parr et al. · Advances in Nutrition · 2022
DOI 10.1093/advances/nmac015
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